| Acronym | Meaning |
| CASTOR | Canadian Automatic Small Telescopes For Orbital Research |
| NMCS | Not Mission Capable Supply (SM&R Code) |
| MHZ | Megahertz |
| PLCC | Plastic Leaded Chip Carrier (electronics) |
| MDP | Markov Decision Process |
| C2C | The British Rail Company Formerly Known As LTS Rail |
| GPU | Gosudarstvennoye Politicheskoye Upravlenie (Russian ??????????????? ???????????? ?????????? |
| USD(C) | (U.S.) Under-Secretary Of Defense (Comptroller) |
| ASMP | Air-Sol Moyenne Port?e Missile (French Medium-range Air To Surface) -Asymmetric Multiprocessing |
| IX | Nine (in Roman Numerals) |